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strace/resource.c
Denys Vlasenko e015d2d331 Macroize conditional signed widening operation 
* defs.h: Define widen_to_long() macro.
* signal.c (sys_kill): Use it instead of open-coding it.
(sys_tgkill): Use widen_to_long() on pids.
* resource.c (decode_rlimit): Formatting fix.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-02-15 14:58:52 +01:00

439 lines
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/*
* Copyright (c) 1991, 1992 Paul Kranenburg <pk@cs.few.eur.nl>
* Copyright (c) 1993 Branko Lankester <branko@hacktic.nl>
* Copyright (c) 1993, 1994, 1995, 1996 Rick Sladkey <jrs@world.std.com>
* Copyright (c) 1996-1999 Wichert Akkerman <wichert@cistron.nl>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "defs.h"
#include <sys/resource.h>
#include <sys/times.h>
#include <linux/kernel.h>
static const struct xlat resources[] = {
#ifdef RLIMIT_AS
{ RLIMIT_AS, "RLIMIT_AS" },
#endif
#ifdef RLIMIT_CORE
{ RLIMIT_CORE, "RLIMIT_CORE" },
#endif
#ifdef RLIMIT_CPU
{ RLIMIT_CPU, "RLIMIT_CPU" },
#endif
#ifdef RLIMIT_DATA
{ RLIMIT_DATA, "RLIMIT_DATA" },
#endif
#ifdef RLIMIT_FSIZE
{ RLIMIT_FSIZE, "RLIMIT_FSIZE" },
#endif
#ifdef RLIMIT_LOCKS
{ RLIMIT_LOCKS, "RLIMIT_LOCKS" },
#endif
#ifdef RLIMIT_MEMLOCK
{ RLIMIT_MEMLOCK, "RLIMIT_MEMLOCK" },
#endif
#ifdef RLIMIT_MSGQUEUE
{ RLIMIT_MSGQUEUE, "RLIMIT_MSGQUEUE" },
#endif
#ifdef RLIMIT_NICE
{ RLIMIT_NICE, "RLIMIT_NICE" },
#endif
#ifdef RLIMIT_NOFILE
{ RLIMIT_NOFILE, "RLIMIT_NOFILE" },
#endif
#ifdef RLIMIT_NPROC
{ RLIMIT_NPROC, "RLIMIT_NPROC" },
#endif
#ifdef RLIMIT_RSS
{ RLIMIT_RSS, "RLIMIT_RSS" },
#endif
#ifdef RLIMIT_RTPRIO
{ RLIMIT_RTPRIO, "RLIMIT_RTPRIO" },
#endif
#ifdef RLIMIT_RTTIME
{ RLIMIT_RTTIME, "RLIMIT_RTTIME" },
#endif
#ifdef RLIMIT_SIGPENDING
{ RLIMIT_SIGPENDING, "RLIMIT_SIGPENDING" },
#endif
#ifdef RLIMIT_STACK
{ RLIMIT_STACK, "RLIMIT_STACK" },
#endif
#ifdef RLIMIT_VMEM
{ RLIMIT_VMEM, "RLIMIT_VMEM" },
#endif
{ 0, NULL }
};
#if !(SIZEOF_RLIM_T == 4 || SIZEOF_RLIM_T == 8)
# error "Unsupported SIZEOF_RLIM_T value"
#endif
static const char *
sprint_rlim64(uint64_t lim)
{
static char buf[sizeof(uint64_t)*3 + sizeof("*1024")];
if (lim == UINT64_MAX)
return "RLIM64_INFINITY";
if (lim > 1024 && lim % 1024 == 0)
sprintf(buf, "%" PRIu64 "*1024", lim / 1024);
else
sprintf(buf, "%" PRIu64, lim);
return buf;
}
static void
print_rlimit64(struct tcb *tcp, unsigned long addr)
{
struct rlimit_64 {
uint64_t rlim_cur;
uint64_t rlim_max;
} rlim;
if (umove(tcp, addr, &rlim) < 0)
tprintf("%#lx", addr);
else {
tprintf("{rlim_cur=%s,", sprint_rlim64(rlim.rlim_cur));
tprintf(" rlim_max=%s}", sprint_rlim64(rlim.rlim_max));
}
}
static void
decode_rlimit64(struct tcb *tcp, unsigned long addr)
{
if (!addr)
tprints("NULL");
else if (!verbose(tcp) ||
(exiting(tcp) && syserror(tcp)))
tprintf("%#lx", addr);
else
print_rlimit64(tcp, addr);
}
#if SIZEOF_RLIM_T == 4 || SUPPORTED_PERSONALITIES > 1
static const char *
sprint_rlim32(uint32_t lim)
{
static char buf[sizeof(uint32_t)*3 + sizeof("*1024")];
if (lim == UINT32_MAX)
return "RLIM_INFINITY";
if (lim > 1024 && lim % 1024 == 0)
sprintf(buf, "%" PRIu32 "*1024", lim / 1024);
else
sprintf(buf, "%" PRIu32, lim);
return buf;
}
static void
print_rlimit32(struct tcb *tcp, unsigned long addr)
{
struct rlimit_32 {
uint32_t rlim_cur;
uint32_t rlim_max;
} rlim;
if (umove(tcp, addr, &rlim) < 0)
tprintf("%#lx", addr);
else {
tprintf("{rlim_cur=%s,", sprint_rlim32(rlim.rlim_cur));
tprintf(" rlim_max=%s}", sprint_rlim32(rlim.rlim_max));
}
}
static void
decode_rlimit(struct tcb *tcp, unsigned long addr)
{
if (!addr)
tprints("NULL");
else if (!verbose(tcp) || (exiting(tcp) && syserror(tcp)))
tprintf("%#lx", addr);
else {
# if SIZEOF_RLIM_T == 4
print_rlimit32(tcp, addr);
# else
if (current_wordsize == 4)
print_rlimit32(tcp, addr);
else
print_rlimit64(tcp, addr);
# endif
}
}
#else /* SIZEOF_RLIM_T == 8 && SUPPORTED_PERSONALITIES == 1 */
# define decode_rlimit decode_rlimit64
#endif /* SIZEOF_RLIM_T == 4 || SUPPORTED_PERSONALITIES > 1 */
int
sys_getrlimit(struct tcb *tcp)
{
if (entering(tcp)) {
printxval(resources, tcp->u_arg[0], "RLIMIT_???");
tprints(", ");
}
else {
decode_rlimit(tcp, tcp->u_arg[1]);
}
return 0;
}
int
sys_setrlimit(struct tcb *tcp)
{
if (entering(tcp)) {
printxval(resources, tcp->u_arg[0], "RLIMIT_???");
tprints(", ");
decode_rlimit(tcp, tcp->u_arg[1]);
}
return 0;
}
int
sys_prlimit64(struct tcb *tcp)
{
if (entering(tcp)) {
tprintf("%ld, ", tcp->u_arg[0]);
printxval(resources, tcp->u_arg[1], "RLIMIT_???");
tprints(", ");
decode_rlimit64(tcp, tcp->u_arg[2]);
tprints(", ");
} else {
decode_rlimit64(tcp, tcp->u_arg[3]);
}
return 0;
}
static const struct xlat usagewho[] = {
{ RUSAGE_SELF, "RUSAGE_SELF" },
{ RUSAGE_CHILDREN, "RUSAGE_CHILDREN" },
#ifdef RUSAGE_BOTH
{ RUSAGE_BOTH, "RUSAGE_BOTH" },
#endif
{ 0, NULL },
};
#ifdef ALPHA
void
printrusage32(struct tcb *tcp, long addr)
{
struct timeval32 {
unsigned tv_sec;
unsigned tv_usec;
};
struct rusage32 {
struct timeval32 ru_utime; /* user time used */
struct timeval32 ru_stime; /* system time used */
long ru_maxrss; /* maximum resident set size */
long ru_ixrss; /* integral shared memory size */
long ru_idrss; /* integral unshared data size */
long ru_isrss; /* integral unshared stack size */
long ru_minflt; /* page reclaims */
long ru_majflt; /* page faults */
long ru_nswap; /* swaps */
long ru_inblock; /* block input operations */
long ru_oublock; /* block output operations */
long ru_msgsnd; /* messages sent */
long ru_msgrcv; /* messages received */
long ru_nsignals; /* signals received */
long ru_nvcsw; /* voluntary context switches */
long ru_nivcsw; /* involuntary " */
} ru;
if (!addr)
tprints("NULL");
else if (syserror(tcp) || !verbose(tcp))
tprintf("%#lx", addr);
else if (umove(tcp, addr, &ru) < 0)
tprints("{...}");
else if (!abbrev(tcp)) {
tprintf("{ru_utime={%lu, %lu}, ru_stime={%lu, %lu}, ",
(long) ru.ru_utime.tv_sec, (long) ru.ru_utime.tv_usec,
(long) ru.ru_stime.tv_sec, (long) ru.ru_stime.tv_usec);
tprintf("ru_maxrss=%lu, ru_ixrss=%lu, ",
ru.ru_maxrss, ru.ru_ixrss);
tprintf("ru_idrss=%lu, ru_isrss=%lu, ",
ru.ru_idrss, ru.ru_isrss);
tprintf("ru_minflt=%lu, ru_majflt=%lu, ru_nswap=%lu, ",
ru.ru_minflt, ru.ru_majflt, ru.ru_nswap);
tprintf("ru_inblock=%lu, ru_oublock=%lu, ",
ru.ru_inblock, ru.ru_oublock);
tprintf("ru_msgsnd=%lu, ru_msgrcv=%lu, ",
ru.ru_msgsnd, ru.ru_msgrcv);
tprintf("ru_nsignals=%lu, ru_nvcsw=%lu, ru_nivcsw=%lu}",
ru.ru_nsignals, ru.ru_nvcsw, ru.ru_nivcsw);
}
else {
tprintf("{ru_utime={%lu, %lu}, ru_stime={%lu, %lu}, ...}",
(long) ru.ru_utime.tv_sec, (long) ru.ru_utime.tv_usec,
(long) ru.ru_stime.tv_sec, (long) ru.ru_stime.tv_usec);
}
}
#endif
void
printrusage(struct tcb *tcp, long addr)
{
struct rusage ru;
if (!addr)
tprints("NULL");
else if (syserror(tcp) || !verbose(tcp))
tprintf("%#lx", addr);
else if (umove(tcp, addr, &ru) < 0)
tprints("{...}");
else if (!abbrev(tcp)) {
tprintf("{ru_utime={%lu, %lu}, ru_stime={%lu, %lu}, ",
(long) ru.ru_utime.tv_sec, (long) ru.ru_utime.tv_usec,
(long) ru.ru_stime.tv_sec, (long) ru.ru_stime.tv_usec);
tprintf("ru_maxrss=%lu, ru_ixrss=%lu, ",
ru.ru_maxrss, ru.ru_ixrss);
tprintf("ru_idrss=%lu, ru_isrss=%lu, ",
ru.ru_idrss, ru.ru_isrss);
tprintf("ru_minflt=%lu, ru_majflt=%lu, ru_nswap=%lu, ",
ru.ru_minflt, ru.ru_majflt, ru.ru_nswap);
tprintf("ru_inblock=%lu, ru_oublock=%lu, ",
ru.ru_inblock, ru.ru_oublock);
tprintf("ru_msgsnd=%lu, ru_msgrcv=%lu, ",
ru.ru_msgsnd, ru.ru_msgrcv);
tprintf("ru_nsignals=%lu, ru_nvcsw=%lu, ru_nivcsw=%lu}",
ru.ru_nsignals, ru.ru_nvcsw, ru.ru_nivcsw);
}
else {
tprintf("{ru_utime={%lu, %lu}, ru_stime={%lu, %lu}, ...}",
(long) ru.ru_utime.tv_sec, (long) ru.ru_utime.tv_usec,
(long) ru.ru_stime.tv_sec, (long) ru.ru_stime.tv_usec);
}
}
int
sys_getrusage(struct tcb *tcp)
{
if (entering(tcp)) {
printxval(usagewho, tcp->u_arg[0], "RUSAGE_???");
tprints(", ");
}
else
printrusage(tcp, tcp->u_arg[1]);
return 0;
}
#ifdef ALPHA
int
sys_osf_getrusage(struct tcb *tcp)
{
if (entering(tcp)) {
printxval(usagewho, tcp->u_arg[0], "RUSAGE_???");
tprints(", ");
}
else
printrusage32(tcp, tcp->u_arg[1]);
return 0;
}
#endif /* ALPHA */
int
sys_sysinfo(struct tcb *tcp)
{
struct sysinfo si;
if (exiting(tcp)) {
if (syserror(tcp) || !verbose(tcp))
tprintf("%#lx", tcp->u_arg[0]);
else if (umove(tcp, tcp->u_arg[0], &si) < 0)
tprints("{...}");
else {
tprintf("{uptime=%lu, loads=[%lu, %lu, %lu] ",
(long) si.uptime, (long) si.loads[0],
(long) si.loads[1], (long) si.loads[2]);
tprintf("totalram=%lu, freeram=%lu, ",
(long) si.totalram, (long) si.freeram);
tprintf("sharedram=%lu, bufferram=%lu} ",
(long) si.sharedram, (long) si.bufferram);
tprintf("totalswap=%lu, freeswap=%lu, procs=%u}",
(long) si.totalswap, (long) si.freeswap,
(unsigned)si.procs);
}
}
return 0;
}
static const struct xlat priorities[] = {
{ PRIO_PROCESS, "PRIO_PROCESS" },
{ PRIO_PGRP, "PRIO_PGRP" },
{ PRIO_USER, "PRIO_USER" },
{ 0, NULL },
};
int
sys_getpriority(struct tcb *tcp)
{
if (entering(tcp)) {
printxval(priorities, tcp->u_arg[0], "PRIO_???");
tprintf(", %lu", tcp->u_arg[1]);
}
return 0;
}
int
sys_setpriority(struct tcb *tcp)
{
if (entering(tcp)) {
printxval(priorities, tcp->u_arg[0], "PRIO_???");
tprintf(", %lu, %ld", tcp->u_arg[1], tcp->u_arg[2]);
}
return 0;
}
int
sys_times(struct tcb *tcp)
{
struct tms tbuf;
if (exiting(tcp)) {
if (tcp->u_arg[0] == 0)
tprints("NULL");
else if (syserror(tcp))
tprintf("%#lx", tcp->u_arg[0]);
else if (umove(tcp, tcp->u_arg[0], &tbuf) < 0)
tprints("{...}");
else {
tprintf("{tms_utime=%llu, tms_stime=%llu, ",
(unsigned long long) tbuf.tms_utime,
(unsigned long long) tbuf.tms_stime);
tprintf("tms_cutime=%llu, tms_cstime=%llu}",
(unsigned long long) tbuf.tms_cutime,
(unsigned long long) tbuf.tms_cstime);
}
}
return 0;
}
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